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      02-27-2013, 04:31 PM   #17
joe@ptech
NorCal BMW Specialists
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Drives: 15 M3|13 M3|04 M3
Join Date: Oct 2010
Location: Bay Area, CA

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We did both on this F10 M5 project and the customer went with the Akra in the end. It just sounds more refined and not so loud. Eisenmann Race sounds amazing, but loud and droned more than our customer wanted.

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